CN108376197A - A kind of fault activation correlate degree analysis method based on orthogonal test - Google Patents
A kind of fault activation correlate degree analysis method based on orthogonal test Download PDFInfo
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Abstract
The fault activation correlate degree analysis method based on orthogonal experiment that the invention discloses a kind of, belongs to Mine Safety in Production technical field, including：According to theory mechanics analysis, fault activation mechanical model is established；According to Practical Project geologic setting, Three-dimension Numerical Model is established；Fraction principle based on factor design, using rational orthogonal trial modeling scheme；Using grey Relational Analysis Method, analog result is analyzed；According to analysis result, the degree of association of each Dominated Factors and fault activation is obtained.The present invention is based on the theoretical thoughts of orthogonal test, utilize the degree of association of grey relational grade analysis technique study each Dominated Factors and fault activation, effective solution multiple-factor implements in full the excessive problem of test number (TN), research work amount greatly is alleviated, a kind of new thinking and idea are provided for the research of the fault activation Dominated Factors degree of association.
Description
Technical field
The present invention relates to Mine Safety in Production technical field, more particularly to a kind of fault activation factor based on orthogonal test
Correlation analysis method.
Background technology
Many scholars have carried out deep analysis to the influence factor of fault activation, and obtain significant achievement in research,
Strong theory support is provided effectively to prevent inrush through faults, but such research is analyzed for single factors mostly, and
The degree of association problem of each influence factor and fault activation is not considered.Therefore, the present invention is based on orthogonal test grey relational grade analysis
Method analyzes the Dominated Factors degree of association of fault activation, is disconnected to the influence factor of further study of fault activation
The research of the layer activation Dominated Factors degree of association provides a kind of new thinking and idea.
Invention content
1. the purpose of the present invention
In Coal Exploration technical field a kind of new idea and method is provided for the study of fault mobilizing factors degree of association.
2. technical scheme of the present invention
To achieve the above object, a kind of fault activation correlate degree analysis method based on orthogonal test of the present invention, should
Method includes：Step A establishes fault activation mechanical model according to theory mechanics analysis；Step B is carried on the back according to Practical Project geology
Scape establishes Three-dimension Numerical Model；Step C, the fraction principle based on factor design, using rational orthogonal trial simulation side
Case；Step D analyzes analog result using grey Relational Analysis Method；Step E obtains each master according to analysis result
The degree of association of control factor and fault activation.
The present invention is based on the theoretical thought of orthogonal test, using each Dominated Factors of grey relational grade analysis technique study with
The degree of association of fault activation, effective solution multiple-factor implement in full the excessive problem of test number (TN), greatly alleviate research
Workload provides a kind of new thinking and idea for the research of the fault activation Dominated Factors degree of association.
Description of the drawings
The attached drawing for being used for illustrating herein is for further explanation of the present invention, is the part of the application,
But the present invention can not be limited.
Fig. 1 is that the present invention is based on the fault activation correlate degree analysis method flow charts of orthogonal test.
Fig. 2 is certain mine fault activation mechanical model figure.
Fig. 3 is certain mine tomography Three-dimension Numerical Model figure.
Fig. 4 is influence result figure of each factor of orthogonal test analysis to fault activation.
Specific embodiment
Below in conjunction with the accompanying drawings and the example applied of the present invention, invention is further explained.
Fig. 1 is that the present invention is based on the fault activation correlate degree analysis method flow charts of orthogonal test.As shown in Figure 1,
This method includes：
Step A establishes fault activation mechanical model according to theory mechanics analysis；
Step B establishes Three-dimension Numerical Model according to Practical Project geologic setting；
Step C, the fraction principle based on factor design, using rational orthogonal trial modeling scheme；
Step D analyzes analog result using grey Relational Analysis Method；
Step E obtains the degree of association of each Dominated Factors and fault activation according to analysis result.
Below in conjunction with specific example, above-mentioned each step is explained.
Step A establishes fault activation mechanical model according to theory mechanics analysis.
The activation of tomography is not only related with the property of tomography itself, but also divides with the stope support pressure under digging effect
Cloth is closely related.Therefore, under the premise of considering that stope supports pressure law, if co-hade is α, drop h, tomography
Broken bandwidth is w, mining depth of coal seams H, rational fault activation mechanical model (as shown in Figure 2) is established, with this study of fault
The Dominated Factors of activation.
Step B establishes Three-dimension Numerical Model according to Practical Project geologic setting.
According to certain mine geology data, in conjunction near Faults engineering geological condition feature, it is long that setting model moves towards (x)
500m is inclined to (y) long 200m, and longitudinal (z) high 100m, as space is limited, the present invention is only located at hanging wall with getting working face, inverse
Tomography to be inclined to for propulsion.Model is integrally divided into roof, coal seam, fault belt, water-resisting floor, floor water-bearing rock
5 modules.
It,, will on the basis of not influencing analog result accuracy for ease of simulation since working face actual conditions are more complex
Physico-mechanical properties differ the layer group that smaller rock stratum group is rationally generalized as single mass, the coal obtained according to Rock Mechanics Test
Rock stratum physical and mechanical parameter is shown in Table 1.
1 rock mass physical mechanics parameter of table
In model vertical direction, the rock mass at the top of model to earth's surface is replaced to conduct oneself with dignity in a manner of applying uniform load, it is horizontal
On direction, equally apply additional horizontal structural s tress in a manner of uniform load, to meet practically answering residing for coal and rock
Force environment.Bottom boundary uses staff cultivation boundary condition, i.e. X, Y and Z-direction displacement is 0；Right boundary, front and back boundary are adopted
With restrained boundary condition, i.e., X-direction, Y-direction horizontal displacement are 0, and Z-direction is free boundary；Model coboundary is free boundary,
Constraints is not assigned, built numerical model is as shown in Figure 2.To eliminate boundary effect, simulate at working face open-off cut eye away from a model left side
Boundary 50m is promoted, step pitch 20m to fault trend, until stopping promoting (Three-dimension Numerical Model is as shown in Figure 3) at tomography.
Step C, the fraction principle based on factor design, using rational orthogonal trial modeling scheme.
For reasonable study of fault inclination angle, the degree of association of drop, fault disruption zone bandwidth, mining depth of coal seams and fault activation, knot
The practical geological conditions for disclosing tomography in China mining area is closed, the level value for choosing each Dominated Factors is as shown in table 2.
2 Dominated Factors of table and its level value
This simulation is determined as 4 factor, 3 level, and does not consider the interaction between each factor level, therefore selects orthogonal
Table L9 (34) carry out conceptual design (table 3).9 modeling schemes are designed altogether, and A, B, C, D row are a pair of with 2 Dominated Factors of table one respectively
It answers, numerical value indicates the level value that the factor is chosen below each column.
3 modeling scheme orthogonal arrage L9 (3 of table4)
Step D analyzes analog result using grey Relational Analysis Method.
According to modeling scheme determined by table 3, respectively to co-hade, fault throw, broken bandwidth, mining depth of coal seams into
Row independent analysis chooses fault activation displacement average value under the identical level value of each factor and draws each factor as judge index
With the graph of relation (as shown in Figure 4) of fault activation degree.
According to Fig. 4 curvilinear characteristics, show for the inverse tendency exploitation in disk coal seam on normal fault, each factor is to fault activation
Influence be in monotonic increase or monotone decreasing relationship.Fig. 4 a relation curves can be seen that the increase with co-hade, break
Layer activation displacement is gradually reduced instead, is reflected the reduction of fault activation degree, is shown small inclination tomography greater obliquity tomography
More easily activated by digging effects.Fig. 4 b, Fig. 4 c curves show the increase with fault throw, broken bandwidth,
Fault activation displacement is gradually incremented by, and activation degree significantly improves.Fig. 4 d curves explanation is more moved toward deep when getting working face,
Due to the influence of deep high-ground stress, digging effect causes the possibility of fault activation also higher
Step E obtains the degree of association of each Dominated Factors and fault activation according to analysis result.
By collecting the modeling scheme designed by orthogonal test as a result, by system features behavior sequence X0It is defined as tomography work
Change displacement, correlative factor sequence X1、X2、X3、X4It is respectively defined as co-hade, fault throw, broken bandwidth, coal seam are adopted
Deep, data are as shown in table 4.
4 fault activation Dominated Factors of table and fault activation displacement
Using grey relational grade analysis theory, above each factor analyzes fault activation influence degree, as a result sees
Table 5.
5 grey correlation degrees of data of table
The above results understand that the relational degree taxis of each Dominated Factors and fault activation is：Co-hade ＞ mining depth of coal seams ＞ is broken
Broken bandwidth ＞ fault throws.
The present invention is based on the theoretical thought of orthogonal test, using each Dominated Factors of grey relational grade analysis technique study with
The degree of association of fault activation, effective solution multiple-factor implement in full the excessive problem of test number (TN), greatly alleviate research
Workload provides a kind of new thinking and idea for the research of the fault activation Dominated Factors degree of association.
Specific example described above, to the purpose of the present invention, process and advantageous effect are described in detail, and are not used to limit
The restriction range of the fixed present invention, all within the spiritual principles of the present invention, any modification, equivalent replacement for being made etc. should all wrap
Containing within protection scope of the present invention.
Claims (3)
1. a kind of fault activation correlate degree analysis method based on orthogonal experiment, which is characterized in that this method includes：
Step A establishes fault activation mechanical model according to theory mechanics analysis；
Step B establishes Three-dimension Numerical Model according to Practical Project geologic setting；
Step C, the fraction principle based on factor design, using rational orthogonal trial modeling scheme；
Step D analyzes analog result using grey Relational Analysis Method；
Step E obtains the degree of association of each Dominated Factors and fault activation according to analysis result.
2. the fault activation correlate degree analysis method based on orthogonal experiment as described in claim 1, which is characterized in that step
In rapid C, the fraction principle based on factor design, using rational orthogonal trial modeling scheme.For reasonable study of fault inclination angle,
The degree of association of drop, fault disruption zone bandwidth, mining depth of coal seams and fault activation, in conjunction with the practical geology for disclosing tomography in China mining area
Condition, the level value for choosing each Dominated Factors are respectively：35 °, 55 °, 75 ° of co-hade；Fault throw 10m, 20m, 30m；It is disconnected
Layer broken bandwidth 10m, 20m, 30m；Mining depth of coal seams 300m, 500m, 700m.
3. the fault activation correlate degree analysis method based on orthogonal experiment as described in claim 1, which is characterized in that step
In rapid E, according to analysis result, the degree of association of each Dominated Factors and fault activation is obtained.It is right using grey relational grade analysis theory
Each factor analyzes fault activation influence degree in step C, as a result shows the degree of association of each Dominated Factors and fault activation
It is ordered as：Co-hade ＞ mining depth of coal seams ＞ crushed zone width G T.GT.GT fault throws.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070282A (en) * | 2019-04-17 | 2019-07-30 | 国网安徽省电力公司 | A kind of low-voltage platform area line loss analysis of Influential Factors method based on Synthesis Relational Grade |
| CN110807269A (en) * | 2019-11-12 | 2020-02-18 | 中南大学 | Fault activation tendency analysis method based on critical angle |
| CN112685922A (en) * | 2021-03-17 | 2021-04-20 | 中国人民解放军国防科技大学 | Two-layer cascade experimental scheme design method and system |
-
2018
- 2018-02-27 CN CN201810163670.3A patent/CN108376197A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110070282A (en) * | 2019-04-17 | 2019-07-30 | 国网安徽省电力公司 | A kind of low-voltage platform area line loss analysis of Influential Factors method based on Synthesis Relational Grade |
| CN110807269A (en) * | 2019-11-12 | 2020-02-18 | 中南大学 | Fault activation tendency analysis method based on critical angle |
| CN110807269B (en) * | 2019-11-12 | 2021-05-11 | 中南大学 | Fault activation tendency analysis method based on critical angle |
| CN112685922A (en) * | 2021-03-17 | 2021-04-20 | 中国人民解放军国防科技大学 | Two-layer cascade experimental scheme design method and system |
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